A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4- digit number 13b7, which is divisible by 11. Then, (a+b)=?
A. 10
B. 11
C. 12
D. 15
E. None of these
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সঠিক উত্তরঃ
A.
10
Explanation:
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